In Situ Study of Noncatalytic Metal Oxide Nanowire Growth

Simas Rackauskas, Hua Jiang, Jakob Birkedal Wagner, Sergey D. Shandakov, Thomas Willum Hansen, Esko I. Kauppinen, Albert G. Nasibulin

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The majority of the nanowire synthesis methods utilize catalyst particles to guide the nanowire geometry. In contrast, catalyst-free methods are attractive for facile fabrication of pure nanowires without the need for catalyst preparation. Nonetheless, how nanowire growth is guided without a catalyst is still widely disputed and unclear. Here, we show that the nanowire growth during metal oxidation is limited by a nucleation of a new layer. On the basis of in situ transmission electron microscope investigations we found that the growth occurs layer by layer at the lowest specific surface energy planes. Atomic layers nucleate at the edge of twin boundary ridges and form a long-range ordering along the twin boundary. We anticipate our study to be a starting point to employ defects for nanowire growth control and consequently shaping the geometry of nanowires in a similar manner as in the catalyst-assisted growth method.
    Original languageEnglish
    JournalNano letters
    Volume14
    Issue number10
    Pages (from-to)5810-5813
    Number of pages4
    ISSN1530-6984
    DOIs
    Publication statusPublished - 2014

    Keywords

    • Nanowires
    • In situ TEM
    • Noncatalytic growth
    • Metal oxide
    • Nucleation
    • Atomic layer

    Cite this

    Rackauskas, S., Jiang, H., Wagner, J. B., Shandakov, S. D., Hansen, T. W., Kauppinen, E. I., & Nasibulin, A. G. (2014). In Situ Study of Noncatalytic Metal Oxide Nanowire Growth. Nano letters, 14(10), 5810-5813. https://doi.org/10.1021/nl502687s
    Rackauskas, Simas ; Jiang, Hua ; Wagner, Jakob Birkedal ; Shandakov, Sergey D. ; Hansen, Thomas Willum ; Kauppinen, Esko I. ; Nasibulin, Albert G. / In Situ Study of Noncatalytic Metal Oxide Nanowire Growth. In: Nano letters. 2014 ; Vol. 14, No. 10. pp. 5810-5813.
    @article{8fce7776c8e44da9aa2eb756c72d6ae0,
    title = "In Situ Study of Noncatalytic Metal Oxide Nanowire Growth",
    abstract = "The majority of the nanowire synthesis methods utilize catalyst particles to guide the nanowire geometry. In contrast, catalyst-free methods are attractive for facile fabrication of pure nanowires without the need for catalyst preparation. Nonetheless, how nanowire growth is guided without a catalyst is still widely disputed and unclear. Here, we show that the nanowire growth during metal oxidation is limited by a nucleation of a new layer. On the basis of in situ transmission electron microscope investigations we found that the growth occurs layer by layer at the lowest specific surface energy planes. Atomic layers nucleate at the edge of twin boundary ridges and form a long-range ordering along the twin boundary. We anticipate our study to be a starting point to employ defects for nanowire growth control and consequently shaping the geometry of nanowires in a similar manner as in the catalyst-assisted growth method.",
    keywords = "Nanowires, In situ TEM, Noncatalytic growth, Metal oxide, Nucleation, Atomic layer",
    author = "Simas Rackauskas and Hua Jiang and Wagner, {Jakob Birkedal} and Shandakov, {Sergey D.} and Hansen, {Thomas Willum} and Kauppinen, {Esko I.} and Nasibulin, {Albert G.}",
    year = "2014",
    doi = "10.1021/nl502687s",
    language = "English",
    volume = "14",
    pages = "5810--5813",
    journal = "Nano Letters",
    issn = "1530-6984",
    publisher = "American Chemical Society",
    number = "10",

    }

    Rackauskas, S, Jiang, H, Wagner, JB, Shandakov, SD, Hansen, TW, Kauppinen, EI & Nasibulin, AG 2014, 'In Situ Study of Noncatalytic Metal Oxide Nanowire Growth', Nano letters, vol. 14, no. 10, pp. 5810-5813. https://doi.org/10.1021/nl502687s

    In Situ Study of Noncatalytic Metal Oxide Nanowire Growth. / Rackauskas, Simas; Jiang, Hua; Wagner, Jakob Birkedal; Shandakov, Sergey D.; Hansen, Thomas Willum; Kauppinen, Esko I.; Nasibulin, Albert G.

    In: Nano letters, Vol. 14, No. 10, 2014, p. 5810-5813.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - In Situ Study of Noncatalytic Metal Oxide Nanowire Growth

    AU - Rackauskas, Simas

    AU - Jiang, Hua

    AU - Wagner, Jakob Birkedal

    AU - Shandakov, Sergey D.

    AU - Hansen, Thomas Willum

    AU - Kauppinen, Esko I.

    AU - Nasibulin, Albert G.

    PY - 2014

    Y1 - 2014

    N2 - The majority of the nanowire synthesis methods utilize catalyst particles to guide the nanowire geometry. In contrast, catalyst-free methods are attractive for facile fabrication of pure nanowires without the need for catalyst preparation. Nonetheless, how nanowire growth is guided without a catalyst is still widely disputed and unclear. Here, we show that the nanowire growth during metal oxidation is limited by a nucleation of a new layer. On the basis of in situ transmission electron microscope investigations we found that the growth occurs layer by layer at the lowest specific surface energy planes. Atomic layers nucleate at the edge of twin boundary ridges and form a long-range ordering along the twin boundary. We anticipate our study to be a starting point to employ defects for nanowire growth control and consequently shaping the geometry of nanowires in a similar manner as in the catalyst-assisted growth method.

    AB - The majority of the nanowire synthesis methods utilize catalyst particles to guide the nanowire geometry. In contrast, catalyst-free methods are attractive for facile fabrication of pure nanowires without the need for catalyst preparation. Nonetheless, how nanowire growth is guided without a catalyst is still widely disputed and unclear. Here, we show that the nanowire growth during metal oxidation is limited by a nucleation of a new layer. On the basis of in situ transmission electron microscope investigations we found that the growth occurs layer by layer at the lowest specific surface energy planes. Atomic layers nucleate at the edge of twin boundary ridges and form a long-range ordering along the twin boundary. We anticipate our study to be a starting point to employ defects for nanowire growth control and consequently shaping the geometry of nanowires in a similar manner as in the catalyst-assisted growth method.

    KW - Nanowires

    KW - In situ TEM

    KW - Noncatalytic growth

    KW - Metal oxide

    KW - Nucleation

    KW - Atomic layer

    U2 - 10.1021/nl502687s

    DO - 10.1021/nl502687s

    M3 - Journal article

    VL - 14

    SP - 5810

    EP - 5813

    JO - Nano Letters

    JF - Nano Letters

    SN - 1530-6984

    IS - 10

    ER -

    Rackauskas S, Jiang H, Wagner JB, Shandakov SD, Hansen TW, Kauppinen EI et al. In Situ Study of Noncatalytic Metal Oxide Nanowire Growth. Nano letters. 2014;14(10):5810-5813. https://doi.org/10.1021/nl502687s